APA

Ruthven A. K. B., . (2010). Essential examination. Edinburgh: Scion.

Chicago

Ruthven Alasdair K B, . 2010. Essential examination. Edinburgh: Scion.

Harvard

Ruthven A. K. B., . (2010). Essential examination. Edinburgh: Scion.

MLA

Ruthven Alasdair K B, . Essential examination. Edinburgh: Scion. 2010.